Patent US2669520A successfully refreshed from Google Patents.
Patent US3269705A successfully refreshed from Google Patents.
US3269705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for elevating tower structure
Assignee: Union Tank Car Co
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Filing: 1965-08-09
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Granted: 1966-08-30
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Heathcote
- 👤 Hans C Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:29
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
AN APPARATUS FOR ERECTING A TOWER OF THE TYPE INCLUDING A SUPPORTED STRUCTURE, COMPRISING: A SYSEM OF SUPPORTING COLUMNS ADAPTED TO DISENGAGEABLY SUPPORT THE STRUCTURE, A PLURALITY OF LIFTING JACKS INCLUDING RELATIVELY MOVABLE FIRST AND SECOND MEMBERS, SAID FIRST MEMBERS HAVING MEANS FOR SECURING TO SAID STRUCTURE AND HAVING MEANS FOR DISENGAGEABLE CONNECTION TO SAID SYSTEM OF SUPPORTING COLUMNS, SAID SECOND MEMBERS HAVING MOUNTING MEANS FOR DISENGAGEABLE CONNECTION TO SAID SYSTEM OF SUPPORTING COLUMNS, WHEREBY VERTICAL EXTENSION OF SAID FIRST MEMBERS RELATVE TO SAID SECOND MEMBERS WITH SAID SECURING MEANS CONNECTOR MEANS DISENGAGED FROM SAID SYSTEM OF SUPPORTING COLUMNS AND SAID MOUNTING MEANS CONNECTED TO SAID SYSTEM IS EFFECTIVE TO RAISE SAID STRUCTURE RELATIVE TO SAID SYSTEM, WHILE SUBSEQUENT ENGAGEMENT OF SAID CONNECTOR MEANS WITH SAID SYSTEM AND THEN RETRACTION OF SAID SECOND MEMBERS RELATIVE TO SAID FIRST MEMBERS WITH SAID MOUNTING MEANS DISENGAGED FROM SAID SYSTEM IS EFFECTIVE TO REPOSITION SAID LIFTING JACKS FOR LIFTING SAID STRUCTURE FURTHER WHILE HOLDING SAID STRUCTURE IN ITS INITIALLY RAISED POSITION.
Claim 2
Independent Claim
168 words
AN APPARATUS FOR ERECTING A TOWER OF THE TYPE INCLUDING A SUPPORTED STRUCTURE, COMPRISING: A SYSEM OF SUPPORTING COLUMNS ADAPTED TO DISENGAGEABLY SUPPORT THE STRUCTURE, A PLURALITY OF LIFTING JACKS INCLUDING RELATIVELY MOVABLE FIRST AND SECOND MEMBERS, SAID FIRST MEMBERS HAVING MEANS FOR SECURING TO SAID STRUCTURE AND HAVING MEANS FOR DISENGAGEABLE CONNECTION TO SAID SYSTEM OF SUPPORTING COLUMNS, SAID SECOND MEMBERS HAVING MOUNTING MEANS FOR DISENGAGEABLE CONNECTION TO SAID SYSTEM OF SUPPORTING COLUMNS, WHEREBY VERTICAL EXTENSION OF SAID FIRST MEMBERS RELATVE TO SAID SECOND MEMBERS WITH SAID SECURING MEANS CONNECTOR MEANS DISENGAGED FROM SAID SYSTEM OF SUPPORTING COLUMNS AND SAID MOUNTING MEANS CONNECTED TO SAID SYSTEM IS EFFECTIVE TO RAISE SAID STRUCTURE RELATIVE TO SAID SYSTEM, WHILE SUBSEQUENT ENGAGEMENT OF SAID CONNECTOR MEANS WITH SAID SYSTEM AND THEN RETRACTION OF SAID SECOND MEMBERS RELATIVE TO SAID FIRST MEMBERS WITH SAID MOUNTING MEANS DISENGAGED FROM SAID SYSTEM IS EFFECTIVE TO REPOSITION SAID LIFTING JACKS FOR LIFTING SAID STRUCTURE FURTHER WHILE HOLDING SAID STRUCTURE IN ITS INITIALLY RAISED POSITION.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |